Download SOA and WS-BPEL: Composing Service-Oriented Architecture by Yuli Vasiliev PDF

By Yuli Vasiliev

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Additional info for SOA and WS-BPEL: Composing Service-Oriented Architecture Solutions with PHP and Open-Source ActiveBPEL

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This will be discussed in greater detail in Chapter 3. Another important point to note here is that ���� the placeOrder method��������� doesn't contain any code required to validate an incoming PO document. For simplicity, this example assumes no validation for the moment. However, when continuing with the example in the next sections of this chapter, you will see how XML schema-based validation can be used with WSDL, defining types for parts of the messages described in WSDL definitions. Then, in Chapter 3, you will learn how the incoming PO documents can be automatically validated against a PO XML schema within the database, upon inserting them into the purchaseOrders table.

You will see an example of building an XML document with the help of the PHP DOM extension in the Converting SOAP Messages' Payloads to XML section later in this chapter. Testing the Service Now you are ready to test the PO Web service. To do this, you simply need to point your browser at the service requestor discussed in the preceding section. php. If everything goes as planned, you will see a PO inserted! message in your browser. Otherwise, a SOAP fault message appears. For example, if the placeOrder method of the purchaseOrder class��������������������������������������������������������� fails to connect to the database, you will see an error message that will look as follows: Failed to connect to database Turning back to the placeOrder method of the purchaseOrder class discussed in the Developing the PHP Handler Class section earlier, you may notice that it also throws a SOAP exception upon failure to insert the received PO into the database.

Xsd in the WebServices/schema directory within ������������������������������������������������� the document directory of your Web server.

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